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Ruby Performance Optimization
You don’t have to accept slow Ruby or Rails performance. In this comprehensive guide to Ruby optimization, you’ll learn how to write faster Ruby code—but that’s just the beginning. See exactly what makes Ruby and Rails code slow, and how to fix it. Alex Dymo will guide you through perils of memory and CPU optimization, profiling, measuring, performance testing, garbage collection, and tuning. You’ll find that all those “hard” things aren’t so difficult after all, and your code will run orders of magnitude faster.
Mazes for Programmers
A book on mazes? Seriously?
Not because you spend your day creating mazes, or because you particularly like solving mazes.
But because it’s fun. Remember when programming used to be fun? This book takes you back to those days when you were starting to program, and you wanted to make your code do things, draw things, and solve puzzles. It’s fun because it lets you explore and grow your code, and reminds you how it feels to just think.
Sometimes it feels like you live your life in a maze of twisty little passages, all alike. Now you can code your way out.
Hello, Android (4th edition)
Google Android dominates the mobile market, and by targeting Android, your apps can run on most of the phones and tablets in the world. This new fourth edition of the #1 book for learning Android covers all modern Android versions from Android 4.1 through Android 5.0. Freshly added material covers new Android features such as Fragments and Google Play Services. Android is a platform you can’t afford not to learn, and this book gets you started.